Under the nitrogen valve, slowly add 10.0 ± 1.0kg dichloromethane to the filters (No.: egl016), (No.: egl017) and (No.: egl062) through the diaphragm pump to make the dichloromethane flow down the inner wall of the filte
Under the nitrogen valve, slowly add 10.0±1.0kg dichloromethane into filters (No.:EGL016), (No.:EGL017) and (No.:EGL062) by diaphragm pump, so that dichloromethane flows down the inner wall of the filter. .